William beverley haeison



(No Model.)

W. B. HARISON.

SHOE FOR LADDERS TO PREVENT AOOIDENTS FROM SLIPPING, 6w.v No. 385,806.Patented July 10, 1888.

FIG. 2

UNITED STATES ATENT oFFlCEo XVILLIAM BEVERLEY HARISON, OF NEW YORK, N.Y.

SHOE FOR LADDERS TO PREVENT ACCIDENTS FROM SLIPPING, dc.

SPECIFICATION forming part of Letters Patent No, 385,806, dated July 10,1888.

Application filed August 1i, 1887.

To aZZ whom it may concern.-

Be it known that I, WILLIAM BEVERLEY HARISON, of the city, county, andState of New York, have invented a new and useful Shoe to be Attached toLadders, &c., of which the following is a Specification.

Myinvention is designed to preventladders from slipping while in use, asan improvement upon the old style of spike shoes or strips of metal uponwhich the main weight of theladder rests, and to accomplish this objectwithout serious damage to the surface upon which the ladder is placed;and this object is attained by the instrument illustrated in theaccompanying drawings, in which' Figure I represents the sh0e,whichconsists of a plate of metal bent to conform to the sides of aladdenfoot, the side A having a sharpened edge, a a, (with a reversebevel edge to insure penetration in case of slipping.) to be adjusted toprotrude a sufficient distance only beyond the foot of the ladder, toinsure a firm contact with the surface upon which the ladder may rest,to be firmly attached to the in side foot of the ladder, and to bestrengthened and held in place by plate B, which may be bolted orscrewed to the side of the ladder,

and is designed to resist the horizontal strain that the shoe will beconstantly subject to.

Fig. II represents the shoe (side B) as applied to a shelf-ladder, O,resting upon any surface, d d. The drawings represent the Serial No.246,645. (No model.)

sharpened edge as penetrating the surfaced d, to show the action of thereverse bevel edge; but when in use the shoe is applied so that thesharpened edge a a will engage the surface (I d. but sufficiently toresist any tendency of the ladder to slip. If, however, greater pressurebe brought to bear upon it, the ladder will still be prevented fromslipping dangerously, because of the increasing penetration of a a intothe surfaced d.

I claim that this shoe will insure a ladder against slipping, especiallyupon wooden surfaces, (which it cannot deface, as will any shoe now inuse,) and that it can be made to be adjusted to the lightest or heaviestladders in use.

I claim as myinvention and desire to secure by Letters Patent of theUnited States- A band or strip of metal to be secured to the foot of aladder, with a side piece bent to conform with and to be fastened to theside of the ladder, and with a sharpened edge beveled to insurepenetration in case of the ladder slipping, designed to be adjusted withthis sharpened edge protruding beyond the foot of the ladder asufficient distance only to secure firm contact with the surface uponwhich the ladder may rest without seriously damaging such surface,substantially as above described.

WM. BEVERLEY HARISON. Witnesses:

WILLIAM B. HARISON, J OSEPH B. BRAMAN.

